IDT72235LB15TF IDT, Integrated Device Technology Inc, IDT72235LB15TF Datasheet - Page 12
![IC FIFO 2048X18 SYNC 15NS 68TQFP](/photos/31/27/312736/64pin_tqfp_sml.jpg)
IDT72235LB15TF
Manufacturer Part Number
IDT72235LB15TF
Description
IC FIFO 2048X18 SYNC 15NS 68TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
7200r
Datasheet
1.IDT72225LB10PFG.pdf
(16 pages)
Specifications of IDT72235LB15TF
Function
Synchronous
Memory Size
36.8K (2K x 18)
Data Rate
67MHz
Access Time
15ns
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
68-TQFP, 68-VQFP
Configuration
Dual
Density
36Kb
Access Time (max)
10ns
Word Size
18b
Organization
2Kx18
Sync/async
Synchronous
Expandable
Yes
Bus Direction
Uni-Directional
Package Type
STQFP
Clock Freq (max)
66.7MHz
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Supply Current
60mA
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
72235LB15TF
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
IDT72235LB15TF
Manufacturer:
IDT
Quantity:
1
Company:
Part Number:
IDT72235LB15TF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Company:
Part Number:
IDT72235LB15TF8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
NOTES:
1. m = PAF offset. D = maximum FIFO Depth. Number od data words written into FIFO memory = 256 - m + 1 for the IDT72205LB, 512 - m + 1 for the IDT72215LB,
2. 256 - m words for the IDT72205LB, 512 - m words for the IDT72215LB, 1,024 - m words for the IDT72225LB, 2,048 - m words for the IDT72235LB and 4,096 - m words for
NOTES:
1. D = maximum FIFO Depth = 256 words for the IDT72205LB, 512 words for the IDT72215LB, 1,024 words for the IDT72225LB, 2,048 words for the IDT72235LB and 4,096 words
NOTE:
1. n = PAE offset. Number of data words written into FIFO already = n.
IDT72205LB/72215LB/72225LB/72235LB/72245LB CMOS SyncFIFO
256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18
WCLK
WCLK
RCLK
RCLK
WCLK
1,024 - m + 1 for the IDT72225LB, 2,048 - m + 1 for the IDT72235LB and 4,096 - m + 1 for the IDT72245LB.
the IDT72245LB.
for the IDT72245LB.
RCLK
D – m + 1 words in FIFO memory
D/2 words in FIFO memory
Figure 12. Programmable Almost-Empty Flag Timing
Figure 13. Programmable Almost-Full Flag Timing
t
t
CLKH
t
CLKH
CLKH
Figure 14. Half-Full Flag Timing
t
t
t
ENS
ENS
ENS
t
(1)
t
CLKL
t
CLKL
CLKL
(1)
(1)
12
TM
t
ENH
t
t
t
ENH
PAE
t
ENH
t
PAF
HF
t
ENS
t
t
ENS
ENS
n + 1 words in FIFO
in FIFO memory
D/2 + 1 words in
FIFO memory
D – m words
t
PAE
t
t
PAF
HF
(2)
COMMERCIAL AND INDUSTRIAL
(2)
TEMPERATURE RANGES
D – m + 1 words
in FIFO memory
n words in FIFO
FIFO memory
OCTOBER 22, 2008
D/2 words in
2766 drw 14
2766 drw 16
2766 drw 15
(1)
(1)